2017 Mercedes-Benz G550 4x4

The 2017 Mercedes-Benz G550 4x4 Squared is an ultra-capable off-road vehicle known for its portal axles, massive ground clearance, and luxurious interior. It’s powered by a 4.0-liter twin-turbo V8 engine producing 416 horsepower and 450 lb-ft of torque, paired with a 7-speed automatic transmission. While owners often praise its unique styling, off-road prowess, and powerful engine, some common dislikes include its high price tag, poor fuel economy, and cumbersome handling in everyday driving. It is important to note that the G550 4x4 Squared shares many components with other G-Class models, so some issues may be applicable across the range.

Engine

4.0L Twin-Turbo V8

• Oil Leaks
  • Description/Symptoms: Oil leaks are sometimes reported, often originating from the valve cover gaskets or oil filter housing. Symptoms include visible oil drips under the vehicle, a burning oil smell, and low oil levels.
  • Solution: Replacing the leaking gaskets or seals.
  • Estimated Cost to Fix: $500 - $1500+ depending on the source of the leak and labor costs.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Turbocharger failures can occur, leading to reduced engine power, excessive smoke, and unusual noises from the engine.
  • Solution: Replacing the faulty turbocharger(s).
  • Estimated Cost to Fix: $2,500 - $5,000+ per turbocharger.
  • Recalls: None Found

Transmission

7-Speed Automatic (7G-Tronic)

• Valve Body Issues
  • Description/Symptoms: The 7G-Tronic transmission can sometimes experience valve body issues, leading to harsh or delayed shifting, slipping between gears, or failure to shift.
  • Solution: Replacing or rebuilding the valve body. Sometimes a software update can resolve the issue.
  • Estimated Cost to Fix: $1,500 - $4,000+ depending on the repair needed.
  • Recalls: None Found

Suspension

• Portal Axle Seals
  • Description/Symptoms: The G550 4x4 Squared uses portal axles to achieve its extreme ground clearance. The seals on these axles can leak, resulting in a loss of gear oil.
  • Solution: Replacing the leaking seals.
  • Estimated Cost to Fix: $800 - $2,000+ per axle.
  • Recalls: None Found
• Ride Height Control Malfunctions
  • Description/Symptoms: The hydraulic ride height system is prone to malfunction, causing the vehicle to lean or sag.
  • Solution: Replace faulty components within the hydraulic system.
  • Estimated Cost to Fix: $1,000 - $5,000+
  • Recalls: None Found

Electrical

• Sensor Failures
  • Description/Symptoms: Various sensors throughout the vehicle can fail, triggering warning lights on the dashboard and affecting vehicle performance. Common culprits include oxygen sensors, mass airflow sensors, and wheel speed sensors.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $200 - $800+ per sensor.
  • Recalls: None Found
• Central Locking System Malfunctions
  • Description/Symptoms: Problems with the central locking system can occur, preventing doors from locking or unlocking remotely or manually.
  • Solution: Diagnosing and repairing the wiring or replacing the faulty actuator.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Some owners have reported rust issues, particularly in areas prone to salt exposure.
  • Solution: Repairing or replacing affected body panels.
  • Estimated Cost to Fix: $500 - $5,000+ depending on the extent of the rust.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroofs on some G-Wagons can experience problems with their opening and closing mechanisms, or may leak.
  • Solution: Repairing or replacing the sunroof mechanism or seals.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Summary

The 2017 Mercedes-Benz G550 4x4 Squared, while highly desirable for its off-road capabilities and luxury, can present owners with a range of potential issues. The most common issues revolve around the engine (oil leaks, turbo issues), transmission (valve body), suspension (portal axle seals, ride height control), and electrical systems (sensor failures, central locking system). Repairs can range from a few hundred dollars for sensor replacements to several thousand dollars for turbocharger or transmission work. Rust can also be a concern, especially in regions with harsh winters. Potential buyers should be aware of these issues and factor in potential maintenance costs when considering the purchase of a used G550 4x4 Squared.